<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right" style="font-size: 16px">
      <el-breadcrumb-item :to="{ path: '/' }">
        <i class="el-icon-s-promotion"></i> 后台管理
      </el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>新增SPU</el-breadcrumb-item>
      <el-breadcrumb-item>第1步:选择类别</el-breadcrumb-item>
    </el-breadcrumb>

    <el-divider></el-divider>

    <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
      <el-form-item label="商品类别" prop="categoryId">
        <el-input v-model="ruleForm.categoryId" placeholder="请输入商品类别的ID"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="submitForm('ruleForm')">下一步</el-button>
        <el-button @click="resetForm('ruleForm')">重置</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  data() {
    return {
      ruleForm: {
        categoryId: '',
        categoryName: '',
      },
      rules: {
        categoryId: [
          { required: true, message: '请输入商品类别的ID', trigger: 'blur' },
          { pattern: /^\d+$/, message: '排序序号必须是数字', trigger: 'blur' }
        ],
      }
    };
  },
  methods: {
    loadLocalRuleForm(){
      let localRuleFormString = localStorage.getItem('localRuleForm');
      let localRuleForm = JSON.parse(localRuleFormString);
      if(localRuleForm.categoryId) {
        this.ruleForm = localRuleForm;
      }
    },
    submitForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          let url = 'http://localhost:9999/categories/' + this.ruleForm.categoryId;
          console.log(url);

          this.axios
              .create({'headers':{'Authorization': localStorage.getItem('jwt')}})
              .get(url).then((response) => {
            let responseBody = response.data;
            if (responseBody.state == 20000){
              let category = responseBody.data;
              if (category.isParent == 1){
                let message = '错误：选择的类别必须不包含子级类别！';
                this.$message({
                  showClose: true,
                  message: message,
                  type: 'error'
                });
              }else {
                this.ruleForm.categoryName = category.name;
                localStorage.setItem('localRuleForm',JSON.stringify(this.ruleForm));
                this.$router.push('add-new-2');
              }
            }else {
              this.$message({
                showClose: true,
                message: responseBody.message,
                type: 'error'
              });
            }
          });
        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    }
  },
  mounted() {
    this.loadLocalRuleForm();
  }
}
</script>

<style scoped>

</style>